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Covalent bonds form when atoms ________ electrons.
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A triple covalent bond shares how many total electrons?
6
Which of the following atoms would most likely form a diatomic molecule?
nitrogen
all of these
oxygen
hydrogen
__________ bonds form between single bonds.
alpha
pi
sigma
beta
Which of the following elements has 4 valence electrons?
Boron
Carbon
Sulfur
Nitrogen
Molecular compounds are generally composed of what kinds of atoms?
non-metals
How many pairs of electrons are shared in a double covalent bond?
2 pairs
Which of the following elements has the greatest electronegativity?
Fluorine
Iodine
Chlorine
Bromine
The VSEPR model is mainly used to __________________________________.
determine molecular shape
write resonance structures
measure intermolecular forces
determine ionic charge
Unequal sharing of electrons between two bonded atoms ALWAYS indicates __________________.
a polar ionic bond
a nonpolar covalent bond
a polar covalent bond
an ionic bond
Water is an example of a ___________ molecule
polar
ionic
non-polar
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How many pi bonds are there in a triple bond?
2
1
3
Intermolecular attractions are _________ than either ionic or covalent bonds.
weaker
both weaker and stronger
none of these
stronger
In a coordinate covalent bond, ________________________________.
one atom contributes both electrons to a coordinate covalent
none of the above
electrons are shared equally
electrons are shared unequally
________________ occur when polar molecules are attracted to one another.
hydrogen bonds
ionic compounds
Dipole interactions
none of the above
Special properties of water, such as adhesion, cohesion, and surface tension can be attributed to which intermolecular force?
Van de waals forces
Hydrogen bonds
london dispersion forces
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